Pr Suzanne ANDERSON

09:00 - 11:00 : Theme 1: Measuring the Critical Zone.

Theme 1: Measuring the Critical ZoneChairman: Lin MaIn this session, we encourage submissions on measurement and long term monitoring of the critical zone. This may include instrumental observations (in particular, high frequency measurements), subsurface imaging, concentration-discharge relationships, mass budgets of matter and energy, and metrics of rates and residence times, as well as proposals for a metrics of the Critical Zone. This session is open to submissions from individual sites or from networks of sites.

11:00 - 11:15 : coffee break

Chairman: Christian France-LanordThe idea of the session is to show how hydrologic process influence geochemistry and finally, how geochemistry can help resolve hydrologic process. The session also aims at covering works on interplay between chemical weathering and erosion and on the geomorphic evolution of the CZ. In this session we aim in particular at attracting submission on the « deep critical zone », ie. the groundwater component the contribution of these waters to surface water, the interplay between deep waters and surface waters.

13:15 - 15:00 : Lunch

15:00 - 18:00 : Poster session, themes 1 + 2 + 3

Mardi 19 Août 2014

08:25 - 10:45 : Theme 3: The Critical Zone: a living interface

Theme 3: The Critical Zone: a living interfaceChairman: Gaojun LiThe critical zone is a living interface. This session will consider the impact of biology and ecology on the geochemistry of the critical zone from the molecular to global scale. The session will focus on studies in which these elements are integrated, for example in mineral weathering, the cycling of elements, ecosystem productivity and organic matter transport to the oceans

Salle : Auditorium

08:30 - 09:15 : Biology as an agent of chemical and mineralogical change in soil

Speaker(s)

Pr Mark HODSON

Pr Mark HODSON

mark.hodson@york.ac.ukUniversity of York, UK

http://www.york.ac.uk/environment/our-staff/mark-hodson/

Salle : Auditorium

09:15 - 10:00 : The role of subsurface microbial processes in carbon cycling

Speaker(s)

Pr Liane BENNING

Pr Liane BENNING

L.G.Benning@leeds.ac.ukSchool of Earth and Environment, University of Leeds, Leeds UK

Pr Gilles PINAY

gilles.pinay@univ-rennes1.frUniversité Rennes 1, France

Salle : Auditorium

10:45 - 11:00 : Coffee break

Salle : Poster room

10:55 - 13:00 : Theme 4: From Nano to Micro in the Critical Zone

Theme 4: From Nano to Micro in the Critical ZoneChairman: Siggi GislasonThis session aims at presenting cutting edge scientific progress made at the nano and micro scale in the lab or in the field. It will include experimental kinetic studies, surface science, characterization and behavior of nanophases, and contaminant behaviour.

Salle : Auditorium

11:00 - 12:00 : The role of inorganic and organic additives on CaCO3 crystallisation

13:00 - 15:00 : lunch

15:00 - 18:00 : Poster session, themes 4 + 5 + 6

Mercredi 20 Août 2014

08:25 - 10:45 : Theme 5: Isotopes in the Critical Zone

Theme 5: Isotopes in the Critical ZoneChairman: Julien BouchezThis session will explore the use of isotopes to probe critical zone processes. In particular, recent technical advances have made possible the measurement of previously difficult isotopes. These “non traditional” isotopes provide a new window on processes in the Critical Zone. Studies based on experiment and ab initio calculations are expected in this session together with field-based approaches.

10:45 - 11:00 : coffee break

Theme 6: Characteristic timescales of the Critical ZoneChairman: Francois ChabauxThis session aims at synthetizing studies related to rate of formation/destruction and characteristic timescale of the critical zone. This includes the use of cosmogenic isotopes, short-period radionuclides and other techniques such as OSL and thermochronology to infer about residence time of material in mobile layers, residence time in the CZ, rates of weathering, denudation, water residence times, time to respond to climate perturbations (in ecosystem structure, solute/sediment flux, in topography or soil thickness).

13:00 - 14:00 : lunch

Jeudi 21 Août 2014

Theme 7: The Critical Zone and the geological evolution of the biogeochemical cyclesChairman: Karl SteefelIn this session, we wish to explore the couplings between Critical Zone functioning and the evolution of global biogeochemical cycles through geological time. The role of weathering in the Earth‘s climatic evolution is related to tectonics, physical erosion, relief and the evolution of life. We encourage submissions on those couplings and on the evolution of atmospheric CO2, based on experimental, field or modeling approaches.

Salle : Auditorium

08:30 - 09:30 : The Cenozoic oceanic lithium isotope paleo‐variations: the key role of climate and storage processes in the critical zone

10:30 - 11:00 : coffee break

Theme 8: Anthropogenic changes, sustainability and the Critical ZoneChairman: Jens HartmannThe idea of the session is to explore the links between the Critical Zone concept and Global Changes. Terrestrial surfaces play a major role in the evolution of not only climate but also on the sustainability of water and the soil resource. We encourage submissions in this session on the importance of understanding the critical zone of the Earth in climate models, agricultural studies, fate and behavior of contaminants and environmental geochemistry. The session also aims at exploring the geo-engineering of the Critical zone.

13:00 - 15:00 : lunch

15:00 - 18:00 : Poster session, themes 7 + 9

Vendredi 22 Août 2014

08:25 - 10:30 : Theme 9: Integrated Critical Zone Science

Theme 9: Integrated Critical Zone ScienceChairman: Chen ZhuCritical zone science has emerged as a new scientific paradigm that is different from ecosystem science. This session tries to envision what is Critical Zone Science and how it may transform our understanding of the Earth’s geophysiology.

Salle : Auditorium

08:30 - 09:30 : Designing a System of Models to Understand the Critical Zone

Speaker(s)

Pr Susan BRANTLEY

Pr Susan BRANTLEY

sxb7@psu.eduUniversity of Pennsylvania, Penn State, USA

http://www.essc.psu.edu/~sxb7/

Salle : Auditorium

09:30 - 10:30 : Relationships between the transit time of water and the fluxes of weathered elements through the critical zone

Speaker(s)

Pr Kate MAHER

Pr Kate MAHER

kmaher@stanford.eduStandford University, USA

https://pangea.stanford.edu/people/faculty/kate-maher

Salle : Auditorium

10:30 - 10:45 : coffee break

Theme 10: Critical Zone: a new scientific paradigm?Chairman: Yves GodderisThe Critical Zone concept has important implications in the way stakeholders and policymakers are condidering the surface of the Earth. This theme is open to the sociology of science point of view.

Salle : Auditorium

10:45 - 11:30 : Policy relevance of Critical Zone Science

Speaker(s)

Pr Luca MONTANARELLA

Pr Luca MONTANARELLA

luca.montanarella@jrc.ec.europa.euEuropean Commission, Ispra, ITALY

http://eusoils.jrc.ec.europa.eu/esdb_archive/Staff/Montanarella.html

Salle : Auditorium

11:30 - 12:15 : Soil sustainability

Daniel Nahon (Cerege Aix en Provence, France).

Salle : Auditorium

12:15 - 13:00 : Some advantages of the notion of “Critical Zone” for Geopolitics

Speaker(s)

Pr Bruno LATOUR

Pr Bruno LATOUR

bruno.latour@sciencespo.frSociologist of Sciences at Science Po University